You would need to add the following text to the image:
So copyright symbol alongside The AnKing, LLC
Illustration by Your name
This is also covered here:
Alternatively, you can upload this to creative commons and then we can reference it that way
However, very important, does ChemDraw allow users to make content on their website/application and then let users upload it wherever they like/take ownership of the image/use it commercially? please confirm this first, then we can use that image